CanadianMaestro
Headphoneus Supremus
The BHA-1? Because I preferred the Ember. I'm on my second Ember which is the mkII (sold my first Ember to put money towards the BHA-1) and though the BHA-1 is an amazing amp and one of the most dead silent amps I have had the pleasure to use but I found I missed the Ember so I bought the Ember mkII and ran it along side the BHA-1. After a couple of months I realized the Ember was the more enjoyable amp for me so I sold the BHA-1 because I didn't see the point of having it just sit there.
Also I have to admit that I'd not buy another BHA-1 again.
I toyed with getting Ember. Got Polaris instead. I just didn't know where to begin with tube rollin', and didn't want the added expenses of tubes down the road. No regrets.